Testing the influence of a sand mica mixture on basin fill in extension and inversion experiments
We compare the deformation patterns produced by sand and a sand mica mixture (14:1 ratio of sand to mica by weight) while simulating basin fill in extension and inversion models to analyze the potential of the sand mica mixture for applications that require a strong elasto-frictional plastic analogu...
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2015-03-01
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doaj-7c67242bfdc54e78b87585a960ee45002020-11-24T20:57:15ZengAcademia Brasileira de CiênciasAnais da Academia Brasileira de Ciências1678-26902015-03-01871516210.1590/0001-3765201520130150S0001-37652015000100051Testing the influence of a sand mica mixture on basin fill in extension and inversion experimentsCAROLINE J.S. GOMESTAYNARA D'ANGELOGISELA M.S. ALMEIDAWe compare the deformation patterns produced by sand and a sand mica mixture (14:1 ratio of sand to mica by weight) while simulating basin fill in extension and inversion models to analyze the potential of the sand mica mixture for applications that require a strong elasto-frictional plastic analogue material in physical models. Sand and the sand mica mixture have nearly equal angles of internal friction, but the sand mica mixture deforms at a significantly lower level of peak shear stress. In extension, the sand mica mixture basin fill experiments show fewer normal faults. During inversion, the most striking difference between the sand and the sand mica mixture basin fill experiments is related to the internal deformation in fault-propagation folds, which increases with an increase in the basal friction. We conclude that our strongly elasto-frictional plastic sand mica mixture may be used to simulate folds in experiments that focus on mild inversion in the brittle crust.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652015000100051&lng=en&tlng=enmodelagem analógicamistura areia e cristais de micasinversão tectônicaatrito basaldobras de propagação de falhas |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
CAROLINE J.S. GOMES TAYNARA D'ANGELO GISELA M.S. ALMEIDA |
spellingShingle |
CAROLINE J.S. GOMES TAYNARA D'ANGELO GISELA M.S. ALMEIDA Testing the influence of a sand mica mixture on basin fill in extension and inversion experiments Anais da Academia Brasileira de Ciências modelagem analógica mistura areia e cristais de micas inversão tectônica atrito basal dobras de propagação de falhas |
author_facet |
CAROLINE J.S. GOMES TAYNARA D'ANGELO GISELA M.S. ALMEIDA |
author_sort |
CAROLINE J.S. GOMES |
title |
Testing the influence of a sand mica mixture on basin fill in extension and inversion experiments |
title_short |
Testing the influence of a sand mica mixture on basin fill in extension and inversion experiments |
title_full |
Testing the influence of a sand mica mixture on basin fill in extension and inversion experiments |
title_fullStr |
Testing the influence of a sand mica mixture on basin fill in extension and inversion experiments |
title_full_unstemmed |
Testing the influence of a sand mica mixture on basin fill in extension and inversion experiments |
title_sort |
testing the influence of a sand mica mixture on basin fill in extension and inversion experiments |
publisher |
Academia Brasileira de Ciências |
series |
Anais da Academia Brasileira de Ciências |
issn |
1678-2690 |
publishDate |
2015-03-01 |
description |
We compare the deformation patterns produced by sand and a sand mica mixture (14:1 ratio of sand to mica by weight) while simulating basin fill in extension and inversion models to analyze the potential of the sand mica mixture for applications that require a strong elasto-frictional plastic analogue material in physical models. Sand and the sand mica mixture have nearly equal angles of internal friction, but the sand mica mixture deforms at a significantly lower level of peak shear stress. In extension, the sand mica mixture basin fill experiments show fewer normal faults. During inversion, the most striking difference between the sand and the sand mica mixture basin fill experiments is related to the internal deformation in fault-propagation folds, which increases with an increase in the basal friction. We conclude that our strongly elasto-frictional plastic sand mica mixture may be used to simulate folds in experiments that focus on mild inversion in the brittle crust. |
topic |
modelagem analógica mistura areia e cristais de micas inversão tectônica atrito basal dobras de propagação de falhas |
url |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652015000100051&lng=en&tlng=en |
work_keys_str_mv |
AT carolinejsgomes testingtheinfluenceofasandmicamixtureonbasinfillinextensionandinversionexperiments AT taynaradangelo testingtheinfluenceofasandmicamixtureonbasinfillinextensionandinversionexperiments AT giselamsalmeida testingtheinfluenceofasandmicamixtureonbasinfillinextensionandinversionexperiments |
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1716788343877926912 |